Big Idea: Astronomy seeks to explain the origin and interactions of Earth and its solar system.

Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?

Learn why we have seasons in this hands on activity.

Explore the effects of asteroid impacts in this hands on activity.

Do you weigh the same on Jupiter as you do on Earth? Learn to calculate your weight on a different planet.

Temperature is an important part of life on Earth and life in space. This backgrounder explains what temperature is, how it affects people and how it is controlled on the International Space Station.

NASA engineers apply kinematics and dynamics to test parachutes designed specifically to help space probes land safely using aerodynamics.

Earth is covered in rocks. So are Mercury, Venus, Mars and the Moon. Does that mean the rocky planets are all the same?

The life and death of stars form the chemical elements that make up Earth, making stars critical to life as we know it.

Litter isn't just a problem on Earth. When litter ends up in space, it can cause collisions and other consequences for satellites, the International Space Station and even for people on Earth!

Astronauts can experience bone loss in space. To understand why, you need to know a bit about how bones are formed and maintained in your body.